Results 21 to 30 of about 5,046 (150)

The Existence of pblocks of Defect 0 in a Finite Groups with Some Subgroups Being Seminormal

open access: yesJournal of Harbin University of Science and Technology, 2020
By studying homogeneous polynomials related to groups, the complex index of finite groups is defined.The theory of complex index and its complex representation has been developed and perfected quickly So people began to consider the representation of ...
WANG Hong, QIAN Fangsheng
doaj   +1 more source

Subgroups of finite index in an additive group of a ring

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2001
If K is an infinite field and G⫅K is a subgroup of finite index in an additive group, then K∗=G∗G∗−1 where G∗ denotes the set of all invertible elements in G and G∗−1 denotes all inverses of elements of G∗.
Doostali Mojdeh, S. Hassan Hashemi
doaj   +1 more source

Special Subgroups of Gyrogroups: Commutators, Nuclei and Radical [PDF]

open access: yesMathematics Interdisciplinary Research, 2016
‎A gyrogroup is a nonassociative group-like structure modelled on the ‎space of relativistically admissible velocities with a binary ‎operation given by Einstein's velocity addition law‎.
Teerapong Suksumran
doaj   +1 more source

On Residual Separability of Subgroups in Split Extensions

open access: yesМоделирование и анализ информационных систем, 2015
In 1973, Allenby and Gregoras proved the following statement. Let G be a split extension of a finitely generated group A by the group B. 1) If in groups A and B all subgroups (all cyclic subgroups) are finitely separable, then in group G all subgroups (all
A. A. Krjazheva
doaj   +1 more source

Inertial properties in groups [PDF]

open access: yesInternational Journal of Group Theory, 2018
‎‎Let $G$ be a group and $p$ be an endomorphism of $G$‎. ‎A subgroup $H$ of $G$ is called $p$-inert if $H^pcap H$ has finite index in the image $H^p$‎. ‎The subgroups that are $p$-inert for all inner automorphisms of $G$ are widely known and studied in ...
Ulderico Dardano   +2 more
doaj   +1 more source

Maximal subgroups of finite groups

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1990
In finite groups maximal subgroups play a very important role. Results in the literature show that if the maximal subgroup has a very small index in the whole group then it influences the structure of the group itself.
S. Srinivasan
doaj   +1 more source

Meromorphic modular forms and the three-loop equal-mass banana integral

open access: yesJournal of High Energy Physics, 2022
We consider a class of differential equations for multi-loop Feynman integrals which can be solved to all orders in dimensional regularisation in terms of iterated integrals of meromorphic modular forms.
Johannes Broedel   +2 more
doaj   +1 more source

Stronger arithmetic equivalence

open access: yesDiscrete Analysis, 2021
Stronger arithmetic equivalence, Discrete Analysis 2021:23, 23 pp. An algebraic number field is a subfield $K$ of $\mathbb C$ that is finite-dimensional when considered as a vector space over $\mathbb Q$, which implies that every element of $K$ is ...
Andrew V. Sutherland
doaj   +1 more source

A Note on the Normal Index and the c-Section of Maximal Subgroups of a Finite Group

open access: yesJournal of Applied Mathematics, 2014
Let M be a maximal subgroup of finite group G. For each chief factor H/K of G such that K≤M and G=MH, we called the order of H/K the normal index of M and M∩H/K a section of M in G.
Na Tang, Xianhua Li
doaj   +1 more source

On Γ-Interval Valued Fuzzification of Lagrange’s Theorem of Γ-Interval Valued Fuzzy Subgroups

open access: yesIEEE Access, 2020
In this paper, we present the idea of interval valued fuzzy subgroup defined over a certain t-conorm ( $\mathrm {\Gamma }$ -IVFSG) and prove that every IVFSG is $\mathrm {\Gamma }$ -IVFSG.
Umer Shuaib   +4 more
doaj   +1 more source

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